Hello,

I am trying to create a circular beamsplitter with a 50:50 ideal coating on the top semicircle and no coating on the bottom semicircle. How can I achieve this?

So far I have tried to insert a “Standard Surface” at the front face of the glass wedge, applied a custom aperture to the surface, but then I found that I cannot apply a custom coating from MYCOATINGS.DAT to a Standard Surface in NSC.

Next, I tried to create a very thin cylindrical volume in front of my beamsplitter substrate. I applied my 50:50 coating to this surface, but I found that I could not apply an aperture.

So if I use a surface, I cannot apply a coating. If I use a volume, I cannot apply an aperture. What am I missing here?

Thanks!